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Production, reproduction and size in mammals


It is argued that birth rate, turnover rate and production/biomass ratios (P/B) are equivalent in stable populations. It is then shown from field data on 21 mammal species that production scales as a 2/3 power of body mass, suggesting that size rather than life history characteristics explain most interspecific variation. The relationship simolifies calculations of annual production in populations and energy flow through communities.

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Western, D. Production, reproduction and size in mammals. Oecologia 59, 269–271 (1983).

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  • Birth Rate
  • Life History
  • Production Scale
  • Field Data
  • Turnover Rate